Indicator reducing-motion mechanism.



P. 0. BALL.

INDICATOR REDUCING MOTION MECHANISM.

APPLICATION FILED NOV. 15, 1907.

Patented May 31, 1910.

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FREDERICK 0. BALL, 0F PLAINFIELD, NEW JERSEY.

INDICATOR REDUCING-MOTION MECHANISM.

Specification of Letters Patent.

Patented May 31, 1910.

Application filed November 15, 1907. Serial No. 402,310.

To all whom it may concern:

Be it known that I, FREDERICK 0. BALL, a citizen of the United States, residing at Plainfield, in the county of Union and State of New Jersey, have invented new and useful Improvements in Indicator Reducing-Motion Mechanisms, of which the following is a specification.

This invention relates to indicator motion reducing mechanisms, and consists in certain improvements in the construction thereof as will be hereinafter described and pointed out in the claims.

The invention is illustrated in the accompanying drawings as follows:

Figure 1 shows a side elevation of an en gine partly in section on the line 11 in Fig, 3 with the mechanism in place thereof. Fig. 2 an enlarged view of the reducing motion mechanism. Fig. 3 a section on the line 3-3 in Fig. 1.

1 marks the engine cylinder, 2 the piston rod, 3 the cross-head, 4 the connecting rod and 5 the cross-head guides. These may be of usual construction. An opening 6 is formed in the engine frame close to guide 5, and the removable plate 7 is secured over this opening. The arms 8 extend inwardly from this plate at each side of a slot 9 in the plate,

The actuating lever 10 is pivoted at 11 at the lower ends of the arms 8, and extends through the slot 9, and is provided at its upper end with the perforation 12 for the attaching of the indicator cord 21. An arm 13 extends from the lever 10, so that the lever as a whole forms a bell crank. A roller 14 is preferably arranged at the end of the arm 13 in position to travel on a cam 15 secured to the cross-head by means of screws 15. It will be noted that this cam will force the roller 14 upwardly and permit the return, thus actuating the lever 10.

A pin 16 preferably secured to the upper end of the arm 13, extends through a perforation 17 in the plate 7 A spring 18 is arranged around the pin 16 and tensioned against the plate 7 a shoulder 19 on the pin 16, so as to yieldingly force the arm 13 downwardly, and roller 14 into contact with the cam. The pin 16 is provided with a perforation 20 so located as to be above the plate 7 when the pin 16 is in its uppermost position through the action of the cam 15.

A pin 23 may be placedin the perforation 20 so as to engage the plate 7, thus locking the arm 13 in its uppermost position, so that the further movement of the cross head and cam 15 will not actuate the lever 10. This is particularly desirable in that it makes a convenient means for throwing the mechan ism out of action when it is desired to insert a new cord, or for any other reason to stop the action of the mechanisms. In Fig. 1, I have shown an ordinary indicator 22 to which the cord 21 extends from the lever 10.

It will be noted that the reducing motion mechanism can be put in place on the engine while the engine is in motion. While the mechanism is being attached, it is of course preferable that the pin 23 be in place to lock the mechanism out of action. The lever 10 may also be grasped and forced toward the right as seen in Fig. 1, so as to throw the mechanism out of action at any time immediately, and as before stated it may be locked out of action by means of the pin 23.

What I claim as new is:

1. The combination of a cross head; a stationary engine part adjacent thereto; an indicator reducing motion mechanism secured to said part comprising an actuating device mounted thereon, a yielding means for moving the device in one direction, a cam on the cross head for actuating said device in the opposite direction, and means for locking said device out of path of the cam.

2. The combination of a cross head; a stationary engine part adjacent thereto; an indicator reducing motion mechanism removably secured to said part comprising an actuating device mounted thereon, a yielding means for moving the device in one direction, a cam on the cross head for actuating said device, and means for locking said device out of path of the cam.

3. The combination of the cross head; the cam 15 thereon; indicator motion mechanism comprising the plate 7, having the arms 8 extending therefrom and the slot 9 between them; the bell crank lever 10 pivotally secured to arm 8, one end of lever being adapted to engage the cam 15, and the other forming a means for attaching an indicator cord; pin 16 extending from the lever through the plate 7 and spring arranged on the pin 16 for yieldingly forcing the lever toward the cam.

4. The combination of a cross head; the

cam 15 thereon; indicator motion mechanism comprising the plate 7, having the arms 8 extending therefrom and the slot 9 between them; the bell crank lever 10 pivotally secured to the arms 8, one end 13 of the lever being adapted to engage the cam 15, and the other forming a means for attaching an indicator cord; pin 16 extending from the arm 13 through the plate 7; a spring arranged on the pin 16 for yieldingly forcing the arm 13 toward the cam; and means for locking the pin 16 in its upper position.

5. The combination of the cross head; the cam 15 thereon; indicator motion mechanism comprising the plate 7, having the arms 8 extending therefrom and the slot 9 bewitnesses.

FREDERICK 0. BALL. \Vitnesses:

FRANK H. BALL, R0131. T. BRAMPTON. 

